governor romney's plan is to let wall street run wild but he is going to bring the hammer down on sesame street. >> reporter: in san francisco, cate caugiran, cbs 5. >> the president's campaign rival mitt romney is in iowa this morning. the republican emphasized how his plan to cut taxes and create agricultural trade agreements would help american farmers. today's visit is part of a midwest push which will take him to ohio this afternoon. but before he hit the battleground states, the former governor ridiculed president obama's defense of sesame street. >> when the president took office 32 million people on food stamps. now there are 47 million people on food stamps. these are tough times with real serious issues. so you have to scratch your head when the president spends the last week talking about saving big bird. >> romney plans to make stops in ohio four of the next five days. as the campaign heats up, cbssf.com is holding a series of presidential forums online. the candidates answering our questions. today's topic, the role of government, big versus small. >>> jerry sandusky still m